diff --git a/matlab/plot_priors.m b/matlab/plot_priors.m
index 785f270d2c9aebf943b5fab71d61fcbdcd9d6e3b..7845949939f750a4dd37feaee3bd7832e43c1464 100644
--- a/matlab/plot_priors.m
+++ b/matlab/plot_priors.m
@@ -1,5 +1,20 @@
 function plot_priors
-% stephane.adjemian@cepremap.cnrs.fr [07-31-2004]
+
+% function plot_priors
+% plots prior density
+%
+% INPUTS
+%    none
+%    
+% OUTPUTS
+%    none
+%    
+% SPECIAL REQUIREMENTS
+%    none
+%  
+% part of DYNARE, copyright Dynare Team (2004-2008)
+% Gnu Public License.
+
 global bayestopt_ M_ options_
 
 TeX = options_.TeX;